Abstract: A board-to-board connector includes a socket and a plug. The socket has a dielectric housing and a plurality of receiving terminals received in the dielectric housing. The dielectric housing defines a recess and a plurality of sidewalls surrounding the recess. At least one of the sidewalls defines at least one fixing groove connecting to the recess and passing through a top portion of the sidewall. A central portion of two opposing sides of the fixing groove protrudes towards each other to form two facing fixing projections to make the central portion of the fixing groove narrower than two ends thereof. The plug engages into the recess of the socket. The plug has a dielectric body and a plurality of inserting terminals received in the dielectric body. The dielectric body protrudes sideward to form at least one locating lump corresponding to the fixing groove. The locating lump passes from between the two fixing projections by extrusion therebetween and then is blocked by the two fixing projections.

Abstract: A memory card connector includes an insulating housing, an auxiliary member and an ejecting device used for withdrawing a memory card from the memory card connector. The insulating housing has a base. Two sidewalls and a rear wall extend upwards from edges of the base. A plurality of terminal cavities are defined in the insulating housing for receiving a plurality of electric terminals. A cover is coupled with the insulating housing. One side of the insulating housing defines an accommodating cavity. A preventing member is formed at the inside of the accommodating cavity. The auxiliary member is received in the accommodating cavity and slides between the sidewall and the preventing member. The auxiliary member includes at least one elastic member and a cooperative member. The elastic member is located between and against the sidewall and the cooperative member. Hence, the cooperative member is blocked by the preventing member.

Abstract: A memory card connector includes an insulating housing, an auxiliary member and an ejecting device used for withdrawing a memory card from the memory card connector. The insulating housing has a base. Two sidewalls and a rear wall extend upwards from edges of the base. A plurality of terminal cavities are defined in the insulating housing for receiving a plurality of electric terminals. A cover is coupled with the insulating housing. One side of the insulating housing defines an accommodating cavity. A preventing member is formed at the inside of the accommodating cavity. The auxiliary member is received in the accommodating cavity and slides between the sidewall and the preventing member. The auxiliary member includes at least one elastic member and a cooperative member. The elastic member is located between and against the sidewall and the cooperative member. Hence, the cooperative member is blocked by the preventing member.

Abstract: A board to board connector includes a plug and a receptacle. The two ends of the receptacle sink to form a U-shape groove. The groove penetrates downward through the first housing of the receptacle and can accept a first locking piece. The first locking piece has a U-shaped body received in the groove, which extends to form welding portions, and the welding portions project out of the first housing. An inserting groove is opened in the end of the plug. The inserting groove can accept a second locking piece. A straight arm of the second locking piece projects out of the second housing of the plug. The board to board connector can be welded in PCBs by the first and second locking pieces.

Abstract: A card connector includes an insulating housing and an upper cover coupling with the insulating housing. The insulating housing includes a bottom wall, two sidewalls and a back wall, all the walls forming a receiving space therebetween to receive one of a variety of memory cards. One side of the receiving space defines a sliding groove and the other side defines a terminal cavity. Contacts which are divided into two groups are received in the insulating housing respectively. An ejecting apparatus is arranged in the sliding groove. An elastic terminal, located in the terminal cavity, has a base portion. An elastic arm connects with the base portion and continuously protrudes toward the inside bottom wall to form a contacting portion.

Abstract: A memory card connector includes an insulating housing, an ejector, a plurality of first electric terminals, a plurality of second electric terminals, a detected apparatus and a cover. The insulating housing includes a base, a left wall, a right wall and a front wall. All the walls define an upper space and a down space. A glide notch is formed in the right wall. The first electric terminals and the second electric terminals are located in the insulating housing. The ejector is located in the glide notch. The memory card connector can accept a memory card. The detected apparatus determines the correctness of the way that inserting the memory card into the memory card connector.

Abstract: A receptacle connector includes a housing having a first sidewall and a second sidewall. An inserting hole is defined in a middle position of the first sidewall. A first slot and a second slot are defined in the second sidewall. A first conductive terminal has a first contact arm. The first conductive terminal inserts into the housing along the first slot. The first contact arm extends to the inserting hole. The second conductive terminal has a second contact arm. The second fixing arm and a second bending arm connect the second contact arm to the second fixing arm. The second conductive terminal inserts into the housing along the second slot. The second conductive terminal inserts into the housing along the second slot.

Abstract: A receptacle connector includes a housing having a first sidewall and a second sidewall. An inserting hole is defined in a middle position of the first sidewall. A first slot and a second slot are defined in the second sidewall. A first conductive terminal has a first contact arm. The first conductive terminal inserts into the housing along the first slot. The first contact arm extends to the inserting hole. The second conductive terminal has a second contact arm. The second fixing arm and a second bending arm connect the second contact arm to the second fixing arm. The second conductive terminal inserts into the housing along the second slot. The second conductive terminal inserts into the housing along the second slot.

Abstract: A battery connector with retaining board includes an insulating housing and a plurality of terminals received in the insulating housing. Each terminal includes a connecting portion, a contacting portion and a soldering portion. The insulating housing has a vertical cooperating wall. A top wall and a retaining board backward extend from the backside of the vertical cooperating wall, thereby a retaining space is formed therebetween. The backside of the cooperating wall defines a contacting side formed between the top wall and the retaining board. A printed circuit board is retained in the retaining space and one end of the printed circuit board is depressed against the contacting side of the insulating housing whereby a firmly engagement is between the printed circuit board and the battery connector. Therefore, an electrical connection therebetween is stable.